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From rash aroskar <rashmi.aros...@gmail.com>
Subject Re: making sure 1 copy per availability zone(rack) using EC2Snitch
Date Wed, 11 Sep 2013 15:40:43 GMT
Thanks that is helpful.


On Tue, Sep 10, 2013 at 3:52 PM, Robert Coli <rcoli@eventbrite.com> wrote:

> On Mon, Sep 9, 2013 at 11:21 AM, rash aroskar <rashmi.aroskar@gmail.com>wrote:
>
>> Are you suggesting deploying 1.2.9 only if using Cassandra "DC" outside
>> of EC2 or if I wish to use rack replication at all?
>>
>
> 1) use 1.2.9 no matter what, instead of 1.2.5
> 2) if only *ever* will have clusters in EC2, EC2Snitch is fine, but read
> and understand CASSANDRA-3810, especially if not using vnodes
> 3) if *ever* may have clusters outside of EC2 + inside EC2, use
> GossipingPropertyFileSnitch
> 4) if using vnodes, just create a cluster out of hosts with 50% in each AZ
> and you should be all set.
>
> =Rob
>

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